21002022210211 has 8 divisors (see below), whose sum is σ = 24002476253280. Its totient is φ = 18001609456128.

The previous prime is 21002022210187. The next prime is 21002022210241. The reversal of 21002022210211 is 11201222020012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21002022210211 - 2¹¹ = 21002022208163 is a prime.

It is a super-2 number, since 2×21002022210211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21002022210241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9224476 + ... + 11273641.

It is an arithmetic number, because the mean of its divisors is an integer number (3000309531660).

Almost surely, 2^{21002022210211} is an apocalyptic number.

21002022210211 is a deficient number, since it is larger than the sum of its proper divisors (3000454043069).

21002022210211 is a wasteful number, since it uses less digits than its factorization.

21002022210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20644493.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21002022210211 its reverse (11201222020012), we get a palindrome (32203244230223).

The spelling of 21002022210211 in words is "twenty-one trillion, two billion, twenty-two million, two hundred ten thousand, two hundred eleven".